Waves Flashcards
What is the unit for frequency?
Hertz (Hz); f in equations
What is the unit for wavelength?
Metre (m) (or any other distance unit); λ in equations
What is the difference between longitudinal and transverse waves?
Longitudinal waves oscillate parallel to the direction of travel, transverse waves oscillate perpendicular to the direction of travel.
What is amplitude?
Amplitude is the distance between the peak and the resting position of a wave.
What is the wavefront?
The front of the wave, or the direction of travel.
What is frequency?
The number of waves that pass a certain point per second.
What is wavelength?
The wavelength is the distance from each peak to peak in a wave.
What the time period of a wave?
The amount of time it takes for a wave to complete one cycle.
Waves transfer information and energy without…
transferring matter.
What is the relationship between wave speed, frequency and wavelength?
v = f x λ
wave speed = frequency x wavelength
What is the relationship between frequency and time period?
f = 1/T
frequency = 1/time period
All waves can be..
reflected and refracted.
When is there a change in the observed frequency and wavelength of a wave, and what is it known as?
It is when its source is moving relative to an observer, known as the Doppler effect.
